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|
use sys
use "alloc.use"
use "die.use"
use "extremum.use"
use "fmt.use"
use "option.use"
use "result.use"
use "slcp.use"
use "sldup.use"
use "sleq.use"
use "slpush.use"
use "slurp.use"
pkg std =
const getenv : (name : byte[:] -> option(byte[:]))
const getenvv : (name : byte[:], default : byte[:] -> byte[:])
;;
var envkey : byte[:][:]
var envval : byte[:][:]
const envfind = {key
var i
for i = 0; i < envkey.len; i++
if std.sleq(envkey[i], key)
-> `Some envval[i]
;;
;;
-> `None
}
const getenv = {name
var buf : byte[128]
var s
match envfind(name)
| `Some val: -> `Some val
| `None:
s = bfmt(buf[:], "/env/{}", name)
match std.slurp(s)
| `Fail m: -> `None
| `Ok data:
envkey = slpush(envkey, sldup(name))
envval = slpush(envval, data)
-> `Some data
;;
;;
}
const getenvv = {name, default
match getenv(name)
| `Some val: -> val
| `None: -> default
;;
}
|
